CN216257505U

CN216257505U - Linkage pull rod appliance

Info

Publication number: CN216257505U
Application number: CN202120529775.3U
Authority: CN
Inventors: 武广增; 占贵华
Original assignee: Hangzhou Headway Medical Equipment Co ltd
Current assignee: Hangzhou Headway Medical Equipment Co ltd
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2022-04-12
Anticipated expiration: 2031-03-15

Abstract

The utility model provides a linkage pull rod appliance. The appliance comprises a lower jaw tongue arch symmetrically bent with boot-shaped curves and two sets of upper jaw molar cuspid thrusters symmetrically arranged on the labial side of the upper jaw; each set of molar cuspid pusher comprises a cuspid traction part, a cuspid palatal surface lingual button, a linkage pull rod, a molar buccal tube, a first orthodontic elastic rubber ring and a second orthodontic elastic rubber ring; the canine tooth traction part is vertically fixed on a connecting plate at one end of the linkage pull rod bottom plate, the other end of the linkage pull rod bottom plate is in matched insertion connection with the molar buccal tube, and a semicircular opening is formed in the gingival side of the linkage pull rod bottom plate connecting plate; the traction hook of the lower jaw lingual arch molar belt on the labial and buccal surfaces is connected with the semicircular opening of the linkage pull rod through a first orthodontic elastic rubber ring, and the boot-shaped curve of the lower jaw lingual arch is connected with the tongue side buckle of the canine palatal surface through a second orthodontic elastic rubber ring. The utility model simultaneously enables the maxillary canine and molar to move far and middle, and adjusts the far and middle dislocation relation to the neutral occlusion relation, thereby creating good conditions for the second-stage correction.

Description

Linkage pull rod appliance

Technical Field

The utility model relates to the field of orthodontic treatment, in particular to an Anshi II-type malocclusion linkage pull rod appliance.

Background

Along with the increasing importance of people on the beautiful appearance of teeth, the research on the tooth fixing and correcting technology is gradually deepened, the tooth orthodontic technology (also called as tooth correction) is gradually developed, orthodontics mainly researches the etiology and mechanism of malocclusion deformity, diagnoses, analysis, prevention and treatment, and different correcting methods can be adopted for different malocclusion deformities. Currently, malocclusion is divided into three categories, namely neutral malocclusion, far middle malocclusion and near middle malocclusion. Wherein the far and middle malocclusion (i.e. Anshi class II malocclusion) mainly refers to the incoordination between the far and near middle of the upper and lower jawbone and dental arch, the lower jaw and lower dental arch are in far middle position, the molars are in far middle relation, and when the near middle buccal tips of the upper and lower first constant molars are opposite, the mild far and middle malocclusion is realized; a complete distal malocclusal relationship is established if the upper first permanent molar is occluded between the lower first permanent molar and the second bicuspid tooth near the buccal cusp.

The clinical manifestations of far-middle malocclusion are mandibular retrosystole, maxillary protrusion, dental type II (bone type I); aiming at mandibular retrosystole, the treatment principle is to adopt a functional appliance to promote the mandibular growth forward, aiming at the maxillary protrusion, the mild early treatment adopts an oral external arch to inhibit the maxillary growth, and needs to extract four premolars, the severe maxillary protrusion needs to adopt the oral external arch to push the maxillary to move far and middle, and also needs to extract four upper and lower premolars, aiming at the dental type II early treatment, the oral external arch is adopted to push the maxillary molars to move far and middle, and the upper and lower premolars are extracted; in cases where the distal malocclusion is severe as described above, surgery is also required. In the clinical treatment of far-middle malocclusion, in order to change the relationship between molars and cuspids into a neutral relationship, tooth extraction or operation is generally required, and the tooth extraction and operation treatment process undoubtedly also brings physical and mental injuries to patients.

Disclosure of Invention

The utility model provides a linkage pull rod appliance for Anshi II type dislocation first-stage treatment according to the defects of the prior art, which enables cuspids and molars in a far-middle relationship to be gradually adjusted to be in a neutral relationship under the condition of not extracting teeth and performing an operation or only extracting a third molar, and simultaneously drives a dental arch to move together, so that the cuspids and the molars move simultaneously in the correction process, and the correction efficiency can be improved.

In order to achieve the technical purpose, the utility model provides a linkage pull rod appliance which comprises a lower jaw lingual arch arranged on the lower jaw lingual side and a left upper jaw molar cusp pusher and a right upper jaw molar cusp pusher which are symmetrically arranged on the upper jaw labial side, wherein boot-shaped curves are symmetrically bent at the positions, close to molar belt rings, of the two ends of an arch wire of the lower jaw lingual arch, and the buccal surfaces of the molar belt rings at the two ends of the arch wire are respectively provided with a traction hook with the hooked end facing to the gum side; each set of molar canine tooth pusher comprises a canine tooth traction part, a canine tooth palate face lingual side buckle, a linkage pull rod, a molar tooth buccal tube, a first orthodontic elastic rubber ring and a second orthodontic elastic rubber ring, wherein the linkage pull rod comprises a fixed bottom rod and a sliding rod which are arranged in parallel, a stress application spring is sleeved on the sliding rod, one end of the sliding rod is fixedly connected with the fixed bottom rod through a fixed block, the other end of the sliding rod is slidably connected with the fixed bottom rod through a sliding block, a connecting plate is arranged at the sliding connection end of the fixed bottom rod and the sliding rod, an inserting plate is arranged at the fixed connection end, the canine tooth traction part is vertically fixed on the connecting plate, a bonding type base plate is arranged at the connection surface of the connecting plate and a tooth, and a semicircular notch is arranged at the gingival side of the connecting plate; the canine tooth traction component and the connecting plate are fixedly bonded on the labial surface of the maxillary canine tooth to be pulled through the bonding type base plate, the molar buccal tube is fixedly bonded on the labial surface of the maxillary molar tooth to be pulled, the inserting plate of the fixed bottom rod is in matched insertion with the molar buccal tube, and the canine palatal surface lingual side buckle is fixed on the lingual side of the maxillary canine tooth to be pulled; one end of the first orthodontic elastic rubber ring is hung on a traction hook of a molar belt ring at one side of the mandibular lingual arch, the other end of the first orthodontic elastic rubber ring is hung at a semicircular notch on a connecting plate of the linkage pull rod fixed bottom rod at the same side, one end of the second orthodontic elastic rubber ring is hung on a button at the palatal surface lingual side at the same side where the maxillary palatal side is to be pulled, and the other end of the second orthodontic elastic rubber ring is hung on a boot-shaped curve at the same side of the mandibular lingual arch.

The further technical scheme of the utility model is as follows: the appliance also comprises maxillary zygomatic process nails symmetrically arranged on the maxillary gingiva, a canine traction component tension spring and an orthodontic ligature wire, wherein the maxillary zygomatic process nail on each side is arranged at the gingival position above the maxillary molars to be pulled on the same side, one end of the canine traction component tension spring on each side is fixed on the canine traction component, and the other end of the canine traction component tension spring on each side is fixed on the maxillary zygomatic process nail on the same side; and a traction hole is arranged on the sliding block of the linkage pull rod at each side, one end of the orthodontic ligature wire at each side is fixed on the zygomatic nail of the upper jaw, the other end of the orthodontic ligature wire is tied on the traction hole on the linkage pull rod at the same side, and the compression spring is pulled back to push the molar to move far.

The utility model has the following excellent technical scheme: the lower jaw lingual arch comprises an arch wire, a lingual lateral group supporting plate fixed in the middle of the front end of the arch wire, two anterior tooth adjacent hooks fixed on the lingual lateral group supporting plate, a left molar belt ring and a right molar belt ring fixed at two ends of the arch wire, wherein shoe-shaped curves are respectively bent at positions where the arch wire is close to the left molar belt ring and the right molar belt ring, when the lower jaw lingual arch is installed, the lingual lateral base supporting plate covers a lower jaw lingual mucous membrane, and the two shoe-shaped curves are tightly attached to the surface of the lower jaw lingual side.

The utility model has the following excellent technical scheme: the fixed block and the sliding block are arc-shaped upwards-protruding sliding blocks, the fixed bottom rod, the connecting plate and the inserting plate are of an integrated plate body structure, the fixed block is arranged at the connecting part of the fixed bottom rod and the inserting plate, and the sliding block is sleeved at one end of the fixed bottom rod, provided with the connecting plate, and can move left and right along the fixed bottom rod; the fixed block is provided with a sliding hole, one end of the sliding rod is fixed on the sliding block, the other end of the sliding rod penetrates through the sliding hole in the upper portion of the fixed block, the end portion extending out of the sliding hole forms a bent shape, and the sliding rod is driven by the sliding block to move left and right.

The utility model has the following excellent technical scheme: the molar buccal tube comprises an arc-shaped adhesive fixing plate with the same radian as that of the surface of the tooth, and the bottom surface of the buccal tube is provided with a net bottom structure; the guide rod insertion tubes and the rectangular square tubes for being inserted into the insertion plates are transversely arranged on the adhesive fixing plate side by side, and the size of the insertion holes of the rectangular square tubes is equal to the size of the cross sections of the insertion plates; the guide rod insertion pipe is a square insertion pipe, and the size of the pipe hole of the square insertion pipe is equal to that of the cross section of the guide rod.

The utility model has the following excellent technical scheme: the adhesive base plate is provided with a curved surface which can be tightly attached to the surface of the tooth; the cuspid traction part comprises a traction plate and a traction ball fixed on the traction plate, one end of the traction plate is fixed on the connecting plate, the other end of the traction plate extends perpendicularly towards the direction of gum, a first groove used for tooth root control movement is formed in the end, far away from the connecting plate, of the traction plate, a second groove used for tooth crown control movement is formed in one end, close to the connecting plate, of the traction ball, and the traction ball is located between the first groove and the second groove.

The utility model has the following excellent technical scheme: the sliding plate is characterized in that the thickness of a fixed bottom rod of the linkage pull rod is 1mm, the width of the fixed bottom rod is 2.5mm, the length of the fixed bottom rod is 26 mm-28 mm, the connecting plate is flat and straight, the length of the connecting plate is 4-6 mm, a semicircular notch is formed in the end portion close to the connecting plate, and the canine teeth traction part and the connecting plate are welded into a whole.

The utility model has the following excellent technical scheme: the arch wire of the mandibular lingual arch is formed by bending a stainless steel wire with the diameter of 0.9mm, and the hook between the two anterior adjacent teeth is formed by bending a stainless steel wire with the diameter of 0.8 mm.

The appliance of the utility model comprises a lower jaw improved 4-hook fixed tongue arch (attached with an adjacent and an intermediate hook of an anterior tooth and a lateral tongue supporting plate) and two sets of upper jaw molar cusp pushers which are bilaterally symmetrical, each set of molar cusp pushers comprises a cusp traction part, a cusp palatal surface and tongue lateral buckle, a linkage pull rod, a bonded buccal tube and an orthodontic elastic rubber ring, the rubber ring adopts a rubber ring of 1/4 inches, the linkage pull rod is improved by adopting a molar propeller, the starting end of the molar propeller is set to be in a straight state and is directly welded with a cusp traction part base to form an integral structure, the starting end of the propeller above the cusp base is about 5mm long, a semicircular notch is arranged at the position close to the multifunctional traction hook in the gum direction and is a retention accessory for hanging an elastic band, and the notch structure can prevent the elastic band from slipping in the traction process and is an important component for implementing composite elastic traction; the canine traction part and the bonded buccal tube are respectively bonded on the maxillary canine labial surface and the first molar buccal surface and are combined with the linkage pull rod to form a main body structure of the linkage pull rod appliance; the palatal surface and lingual side buckle of the cuspid is fixed on the lingual side of the cuspid, the semicircular notch at the labial surface and the cuspid end of the linkage pull rod, the lingual side buckle of the palatal surface and the lingual arch of the lower jaw 4 hook form composite class II traction, and the control root moving traction of the maxillary zygomatic nail and the tension spring of the cuspid traction component is arranged to form stereo-crossing composite correction force. The molar cusp pusher at each side is combined with a three-dimensional crossed correction mechanical system formed by combining II-type traction of an upper jaw zygomatic nail, a cusp traction component tension spring and a rubber ring, so that an upper jaw dental arch is backwards, a lower jaw dental arch is forwards, cusps and molars in a far-middle relationship are gradually adjusted to be in a neutral relationship, and the dental arches are driven to move together.

The utility model has the beneficial effects that:

(1) the linkage pull rod is improved by adopting the main body structure of the molar thruster, so that the function of the molar thruster can be realized, and the backward correcting force for pushing up the jaw molar is implemented; the starting end of the molar thruster is designed to be in a straight state, and can be well connected with the canine traction part and the molar buccal tube, so that the molar thruster can be stably fixed on the surface of the maxillary tooth, and can be matched with the maxillary zygomatic process nail, the canine traction part tension spring, the rubber ring and the mandibular lingual arch to form composite II-type traction, and simultaneously, the maxillary canine and the molar are pulled to move far and far, under the condition that tooth extraction is not needed or only a third molar is extracted, the relation of the far and middle molar is adjusted to be a neutral molar relation, the correction efficiency is greatly improved, the molar thruster is suitable for the first stage of Anshi II-type malocclusion, and a good condition is created for the application of the second-stage fixed correction device.

(2) Reverse boot-shaped curves are symmetrically arranged on two sides of a lower jaw fixed type tongue arch, an incisor adjacent space hook is arranged on a front tooth section to strengthen retention, a self-coagulation plastic base supporting plate is paved on the area of six front teeth of the lower jaw to strengthen the front tooth anchorage, 1/4-inch rubber bands are hung on the lingual side of a maxillofacial cleft face and the boot-shaped curve of the lower jaw tongue arch, 2 1/4-inch rubber bands are hung on the buccal side of a lower jaw fixed type tongue arch molar buccal tube to a supporting plate opening traction hook at the apical end of an upper jaw linkage pull rod, and composite class II intermaxillary traction is formed.

(3) The linkage pull rod plug is of a thick rectangular quadrilateral structure, is matched with the rectangular tubular four-wall structure of the molar thick buccal tube and is embedded and combined in a convex-concave manner, and is inserted into the molar buccal tube to be closely attached, so that the stability is good, and the linkage pull rod plug is not easy to swing; the linkage pull rod plug and the embedded retention of the molar buccal tube are connected into a whole in a non-welding way, and under the action of elastic traction between jaws of a matching device, the stability of pushing the molar to move far is achieved, and a buffer effect to a certain degree is achieved.

(4) The tension spring between the traction hook and the zygomatic process nail implements the force of pulling the maxillary cuspid and the molar to move far, the correction force can control the root to move because the position of the traction hook is close to the impedance center of the cuspid, and the zygomatic process nail is an absolute anchorage and can directionally and quantitatively pull the cuspid and the molar to move far when being combined with the spring.

The linkage pull rod appliance is suitable for the first-stage correction of class II malocclusion cases, enables the maxillary canine and molar to move far and middle through the correction force of the linkage pull rod, can adjust the relationship between the canine and the molar which are malpositioned far and middle to a neutral occlusion relationship, creates good conditions for the second-stage correction, and shortens the correction treatment period.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the left side of the present invention;

FIG. 3 is a right side schematic view of the present invention;

FIG. 4 is a schematic view of the structure of the mandibular-lingual arch of the present invention;

fig. 5 is a schematic view of a mandibular-lingual arch wire configuration;

FIG. 6 is a schematic view of the linkage pull rod, the canine traction component, and the molar buccal tube of the present invention;

FIG. 7 is a schematic view of the linkage rod of the present invention;

FIG. 8 is a front view of a cuspid tooth traction element of the present invention;

FIG. 9 is a back side view of a cuspid tooth traction element of the present invention;

FIG. 10 is a side view of a cuspid tooth traction element of the present invention;

fig. 11 is a schematic view of the structure of a molar buccal tube of the present invention.

In the figure: 1-mandibular lingual arch, 100-arch wire, 101-boot-shaped curve, 102-left molar band, 103-right molar band, 104-traction hook, 105-lingual base plate, 106-anterior interproximal hook, 2-cuspid traction member, 200-traction plate, 201-traction ball, 202-first groove, 203-second groove, 3-canine palatal lingual button, 4-linkage pull rod, 400-fixed bottom rod, 401-sliding rod, 402-forcing spring, 403-sliding block, 404-fixed block, 405-connecting plate, 406-insertion plate, 407-bonded base plate, 408-semicircular notch, 409-traction hole, 5-molar buccal tube, 500-arc bonded fixed plate, 501-rectangular square tube, 502-guide rod, 6-traction maxillary tooth, 7-maxillary molar to-be-pulled, 8-first orthodontic elastic band, 11-orthodontic ligature wire, 12-second orthodontic elastic band, 13-mandibular first molar.

Detailed Description

The utility model is further illustrated by the following figures and examples. Fig. 1 to 11 are drawings of embodiments, which are drawn in a simplified manner and are only used for the purpose of clearly and concisely illustrating the embodiments of the present invention. The following claims presented in the drawings are specific to embodiments of the utility model and are not intended to limit the scope of the claimed invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the appearances of the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The embodiment provides a linkage pull rod appliance, as shown in fig. 1 to 3, the appliance comprises a mandibular lingual arch 1 installed at a mandibular lingual side and left and right sets of maxillary molar cuspteeth pushers symmetrically arranged at a maxillary labial side; each set of molar cuspid pusher comprises a cuspid traction part 2, a cuspid palatal surface lingual button 3, a linkage pull rod 4, a molar buccal surface tube 5, a first orthodontic elastic rubber ring 8, a second orthodontic elastic rubber ring 12, a maxillary zygomatic process nail 9 of maxillary gingiva, a cuspid traction part tension spring 10 and a 0.25mm orthodontic ligature wire 11.

As shown in fig. 4 and 5, the mandibular-lingual arch 1 in the embodiment includes an archwire 100, a lingual base plate 105 fixed to the middle of the front end of the archwire, two anterior interproximal hooks 106 fixed to the lingual base plate 105, and a left molar band 102 and a right molar band 103 fixed to both ends of the archwire 100, shoe-shaped curves 101 bent at positions of the archwire 100 adjacent to the left molar band 102 and the right molar band 103, respectively, and hook-end-to-gingival-side pulling hooks 104 provided on labial-buccal surfaces of both ends of the archwire 100, respectively. The arch wire 100 is formed by bending a stainless steel wire with the diameter of 0.9mm, and the hook 106 between the two front tooth neighbors is formed by bending a stainless steel wire with the diameter of 0.8 mm. When the mandibular-lingual arch 1 is installed, the lingual base plate 105 covers the mandibular-lingual mucosa and the two boot curves 101 are placed against the mandibular-lingual surface.

As shown in fig. 6 and 7, the linkage rod 4 in the embodiment includes a fixed bottom rod 400 and a sliding rod 401 which are arranged in parallel, a force applying spring 402 is sleeved on the sliding rod 401, one end of the sliding rod 401 is fixedly connected with the fixed bottom rod 400 through an arc-shaped upward convex fixing block 404, the other end of the sliding rod 401 is slidably connected with the fixed bottom rod 400 through an arc-shaped upward convex sliding block 403, an integrated connecting plate 405 is arranged at the sliding connection end of the fixed bottom rod 400 and the sliding rod 401, a plug-in plate 406 is arranged at the fixed connection end, the plug-in plate 406 adopts a thick rectangular quadrilateral structure, is matched with the rectangular tubular four-wall structure of the molar buccal tube 5 and is in convex-concave embedded combination, and a linkage rod plug is inserted into the molar buccal tube to be closely attached, so that the stability is good and the linkage rod is not easy to swing. The sliding block 403 is sleeved with one end of the fixed bottom rod 400, which is provided with the connecting plate 405, and can move left and right along the fixed bottom rod 400, the sliding block 403 is provided with a traction hole 409, the fixed block 404 is arranged at the connecting part of the fixed bottom rod 400 and the inserting plate 406, the fixed block 404 is provided with a sliding hole, one end of the sliding rod 401 is fixed on the sliding block 403, the other end of the sliding rod passes through the sliding hole at the upper part of the fixed block 404, the end part extending out of the sliding hole is formed into a bent shape, and the sliding rod is driven by the sliding block 403 to move left and right. The cuspid tooth traction component 2 is vertically welded on a connecting plate 405, an adhesive base plate 407 is arranged on the connecting surface of the connecting plate 405 and teeth, and a semicircular notch 408 is arranged on the gum side of the connecting plate 405. The adhesive base plate 407 has a curved surface that can be closely attached to the surface of a tooth; as shown in fig. 8 to 10, the canine traction member 2 comprises a traction plate 200 and a traction ball 201 fixed on the traction plate 200, one end of the traction plate 200 is fixed on a connection plate 405, the other end of the traction plate extends vertically towards the gum, a first groove 202 for tooth root control movement is arranged at the end of the traction plate 200 far away from the connection plate 405, a second groove 203 for tooth crown control movement is arranged at the end adjacent to the connection plate 405, and the traction ball 201 is positioned between the first groove 202 and the second groove 203. The fixed bottom rod 400 of the linkage pull rod 4 is a sliding plate with the thickness of 1mm, the width of 2.5mm and the length of 26mm, the connecting plate 405 is flat and straight, the length of 4-6 mm, and the semicircular notch 408 is arranged at the end part close to the connecting plate 405.

As shown in fig. 11, the buccal molar tube 5 in the embodiment includes an arc-shaped adhesive fixing plate 500 having the same curvature as that of the surface of the tooth, and a mesh bottom structure is provided on the bottom surface thereof; a guide rod insertion tube 502 and a rectangular square tube 501 for being inserted into the insertion plate 406 are transversely arranged on the adhesive fixing plate 500 side by side, and the size of an insertion hole of the rectangular square tube 501 is equal to the size of the cross section of the insertion plate 406; the guide rod insertion tube 502 is a square insertion tube, and the size of the tube hole of the square insertion tube is equal to that of the section of the guide rod; the guide rod is usually made of 0.018 inch by 0.025 inch stainless steel square wire and is used as a molar translation guide rod, if the molar is not sprouted, the molar translation guide rod is not used, and the molar translation guide rod can prevent the far tongue from rotating in the far and middle moving process of the first molar. The specific operation of the molar translation guide rod is that 2 square wire torque clamps are used, a jaw oppositely clamps a square wire, a left hand clamp clamps the square wire immovably, and a right hand clamp clamps the square wire and rotates for 90 degrees. The second molar crown cheek face middle section is hugged closely to square thread broadside one side, length approach molar crown nearly far away the pitch diameter 4/5 can, square thread narrow face passes square pipe from far well mouth, and the centre gripping pincers are buckled 90 degrees towards the gum end from the nearly well mouth tensioning square thread of mouth of pipe of cheek face pipe, and the end remains 3 ~ 5 mm. The molar translation guide rod should be assembled prior to the light curing bonding.

When the appliance is installed, as shown in fig. 1 to 3, the canine traction component 2 and the connecting plate 405 on each side are fixedly bonded on the labial surface of the maxillary canine 6 to be pulled on the side through the bonded base 407, the molar buccal tube 5 is fixedly bonded on the labial surface of the maxillary molar 7 to be pulled on the same side, the inserting plate 406 of the fixed bottom rod 400 is in matched insertion connection with the molar buccal tube 5, the canine palatal lingual button 3 is fixed on the lingual side of the maxillary canine 6 to be pulled on the same side, and the maxillary zygomatic nail 9 on each side is arranged at the gum position above the maxillary molar 7 to be pulled on the same side; one end of a tension spring 10 of the canine tooth traction component at each side is fixed on the canine tooth traction component 2, the other end is fixed on the maxillary zygomatic process nail 9 at the same side, one end of a 0.25mm orthodontic ligature wire 11 at each side is fixed on the maxillary zygomatic process nail 9, the other end is tied and fixed on a traction hole 409 on the linkage pull rod 4 at the same side, and the compression spring is pulled back to push the molar teeth to move far; one end of a first orthodontic elastic rubber ring 8 at each side is hung on a traction hook 104 of a molar belt ring at the same side of the mandibular-lingual arch 1, the other end is hung on a semicircular notch 408 on a fixed bottom rod connecting plate 405 of a linkage pull rod 4 at the same side, one end of a second orthodontic elastic rubber ring 12 is hung on a palatal lingual button 3 at the lingual side of a maxillary canine 6 to be pulled at the same side, and the other end is hung on a boot-shaped bend 101 at the same side of the mandibular-lingual arch 1.

The canine traction part 2, the connecting plate 403 and the molar buccal tube 5 are respectively adhered to the labial surface of the maxillary canine and the first molar buccal surface to be corrected, and are combined to form a main body structure of the linkage pull rod corrector. The semicircular notch 408 on the bottom plate of the linkage pull rod 4 is a fixing accessory for hanging the rubber ring, and the notch can prevent the rubber ring from slipping in the traction process and is an important component for implementing composite elastic traction. A semicircular notch 408 on a bottom plate of the linkage pull rod 4, a canine palatal surface lingual side buckle 3, two groups of boot-shaped curves 101 on a mandibular lingual arch 1, a traction hook 104 on a molar belt ring labial side and a lingual arch wire form composite II-type traction, and a control root moving traction of an maxillary zygomatic nail 9 and a canine traction component tension spring 10 is arranged, and a stereo cross correction mechanical system formed by the composite II-type traction of the maxillary zygomatic nail 9, the canine traction component tension spring 10 and a 0.25mm orthodontic ligature wire 11 can enable the maxillary dental arch to move backwards and the mandibular dental arch to move forwards; the appliance gradually adjusts the cuspid and molar teeth in the far-middle relationship to be in a neutral relationship. Simultaneously, the dental arch is driven to move together. After the correction target at the stage is finished, the stage II correction is immediately carried out, namely, the bracket and the buccal tube are placed in the whole mouth, and the accurate tooth movement and upper and lower arch three-dimensional regulation and control stages are implemented.

In the clinical operation, the proper length of the linkage pull rod is adjusted according to the distance between the center point of the cuspid labial surface and the center point of the first molar buccal surface on the dental cast recorded by a patient. Generally, according to the operation flow of acid etching light curing bonding bracket, firstly, the molar buccal tube 5 is bonded, then the connecting plate 406 of the linkage pull rod 4 is inserted into the buccal tube, and then the bonding type base plate 407 at the cuspid end of the linkage pull rod 4 is bonded, so that the operation can be simplified, the cuspid and the molar dental crown buccal surface are simultaneously subjected to acid etching treatment, and the linkage pull rod 4 is simultaneously bonded in place by adopting a light curing technology. The matched combined device is a lower jaw 4-hook fixed tongue bow, and the assembly is finished by adopting glass ion heater to bond the first molar belt rings on two sides to corresponding abutments according to the traditional method. Elastic rubber band: an 1/4 inch rubber band is typically used, and in a few cases, a 3/16 inch rubber band or a 5/16 inch rubber band is also used. The linkage pull rod type II appliance is suitable for the first-stage correction of type II malocclusion cases, and the maxillary canine teeth and molar teeth move far and far through the correction force of the linkage pull rod. The second-class patients adjust the far-middle molar relation to the neutral molar relation through the far-middle movement of the maxillary canine and molar, and create good conditions for the application of the second-phase fixed appliance.

The above description is only one embodiment of the present invention, and the above described embodiment only expresses the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that it is within the scope of the present invention for a person skilled in the art to make several variations and modifications without departing from the spirit of the present invention, such as having a linkage pull rod basic structure combined with a mandibular fixed lingual arch in a compound class ii traction mode while pushing the maxillary molars cuspids to move distally. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a ware is rescued to linkage pull rod which characterized in that: the appliance comprises a mandibular lingual arch (1) arranged on the mandibular lingual side and a left set and a right set of maxillary molar cuspid pushers symmetrically arranged on the maxillary labial side, wherein boot-shaped curves (101) are symmetrically bent at the positions, close to molar belt rings, of two ends of an arch wire (100) of the mandibular lingual arch (1), and traction hooks (104) with hooked ends facing to the gum side are respectively arranged on the buccal surfaces of the molar belt rings at the two ends of the arch wire (100); each set of molar canine tooth pusher comprises a canine tooth traction part (2), a canine tooth palatal surface lingual side buckle (3), a linkage pull rod (4), a molar buccal surface tube (5), a first orthodontic elastic rubber ring (8) and a second orthodontic elastic rubber ring (12), wherein the linkage pull rod (4) comprises a fixed bottom rod (400) and a sliding rod (401) which are arranged in parallel, a stress application spring (402) is sleeved on the sliding rod (401), one end of the sliding rod (401) is fixedly connected with the fixed bottom rod (400) through a fixed block (404), the other end of the sliding rod is slidably connected with the fixed bottom rod (400) through a sliding block (403), a connecting plate (405) is arranged at the sliding connection end of the fixed bottom rod (400) and the sliding rod (401), an inserting plate (406) is arranged at the fixed connection end, the canine tooth traction part (2) is vertically fixed on the connecting plate (405), and a bonding type base plate (407) is arranged at the connection surface of the connecting plate (405) and a tooth, a semicircular notch (408) is arranged at the gum side of the connecting plate (405); the canine traction component (2) and the connecting plate (405) are fixedly bonded on the labial surface of a maxillary canine (6) to be dragged through a bonding type base plate (407), the molar buccal tube (5) is fixedly bonded on the labial surface of a maxillary molar (7) to be dragged, the inserting plate (406) of the fixed bottom rod (400) is in matched insertion connection with the molar buccal tube (5), and the canine palatal surface lingual button (3) is fixed on the lingual side of the maxillary canine (6) to be dragged; one end of the first orthodontic elastic rubber ring (8) is hung on a traction hook (104) of a molar belt ring on one side of the mandibular-lingual arch (1), the other end of the first orthodontic elastic rubber ring is hung on a semicircular notch (408) on a fixed bottom rod connecting plate (405) of the same-side linkage pull rod (4), one end of the second orthodontic elastic rubber ring (12) is hung on a palatal-surface lingual button (3) on the lingual side of the maxillary canine tooth (6) to be pulled on the same side, and the other end of the second orthodontic elastic rubber ring is hung on a same-side boot-shaped curve (101) of the mandibular-lingual arch (1).

2. The linkage brace appliance of claim 1, wherein: the appliance also comprises maxillary zygomatic process nails (9) symmetrically arranged on the maxillary gingiva, canine traction component tension springs (10) and orthodontic ligatures (11), wherein each maxillary zygomatic process nail (9) is arranged at the gum position above the maxillary molar teeth (7) to be pulled on the same side, one end of each canine traction component tension spring (10) is fixed on the canine traction component (2), and the other end of each canine traction component tension spring is fixed on the maxillary zygomatic process nail (9) on the same side; a traction hole (409) is arranged on each side of the linkage pull rod sliding block (403), one end of the orthodontic ligature wire (11) on each side is fixed on the maxillary zygomatic nail (9), and the other end is tied and connected on the traction hole (409) on the linkage pull rod (4) on the same side.

3. A linked pull rod appliance as claimed in claim 1 or claim 2, wherein: the mandibular-lingual arch (1) comprises an arch wire (100), a lingual side group supporting plate (105) fixed in the middle of the front end of the arch wire, two anterior interproximal hooks (106) fixed on the lingual side group supporting plate (105), a left side molar ring (102) and a right side molar ring (103) fixed at two ends of the arch wire (100), shoe-shaped curves (101) are respectively bent at positions where the arch wire (100) is close to the left side molar ring (102) and the right side molar ring (103), when the mandibular-lingual arch (1) is installed, the lingual side group supporting plate (105) covers a mandibular-lingual side mucous membrane, and the two shoe-shaped curves (101) are tightly attached to the mandibular-lingual side surface.

4. A linked pull rod appliance as claimed in claim 1 or claim 2, wherein: the fixing block (404) and the sliding block (403) are arc-shaped upwards-protruding sliding blocks, the fixing bottom rod (400), the connecting plate (405) and the inserting plate (406) are of an integrated plate body structure, the fixing block (404) is arranged at the connecting part of the fixing bottom rod (400) and the inserting plate (406), and the sliding block (403) is sleeved at one end, provided with the connecting plate (405), of the fixing bottom rod (400) and can move left and right along the fixing bottom rod (400); a sliding hole is formed in the fixed block (404), one end of the sliding rod (401) is fixed to the sliding block (403), the other end of the sliding rod penetrates through the sliding hole in the upper portion of the fixed block (404), the end portion extending out of the sliding hole is bent, and the sliding rod is driven by the sliding block (403) to move left and right.

5. A linked pull rod appliance as claimed in claim 1 or claim 2, wherein: the molar buccal tube (5) comprises an arc-shaped adhesive fixing plate (500) with the same radian as that of the surface of the tooth, and the bottom surface of the buccal tube is provided with a net bottom structure; a guide rod insertion tube (502) and a rectangular square tube (501) which is used for being inserted into the insertion plate (406) are arranged on the adhesive fixing plate (500) side by side in a transverse mode, and the size of an insertion hole of the rectangular square tube (501) is equal to the size of the cross section of the insertion plate (406); the guide rod insertion pipe (502) is a square insertion pipe, and the size of the pipe hole of the square insertion pipe is equal to that of the cross section of the guide rod.

6. A linked pull rod appliance as claimed in claim 1 or claim 2, wherein: the adhesive base plate (407) has a curved surface that can be brought into close contact with the surface of a tooth; cuspid traction component (2) are including traction plate (200) and traction ball (201) on the fixed traction plate (200), traction plate (200) one end is fixed on connecting plate (405), and the other end extends perpendicularly towards the direction of gum, keeps away from connecting plate (405) end at traction plate (200) and is equipped with first slot (202) that are used for tooth accuse root to remove, and the one end that closes on connecting plate (405) is equipped with second slot (203) that are used for tooth accuse crown to remove, traction ball (201) are located the position between first slot (202) and second slot (203).

7. A linked pull rod appliance as claimed in claim 1 or claim 2, wherein: the fixed bottom rod (400) of the linkage pull rod (4) is a sliding plate with the thickness of 1mm, the width of 2.5mm and the length of 26 mm-28 mm, the connecting plate (405) is flat and straight, the length of 4-6 mm, the semicircular notch (408) is formed in the end portion close to the connecting plate (405), and the cuspid traction component (2) and the connecting plate (405) are welded into a whole.

8. A linked pull rod appliance as claimed in claim 3, wherein: the arch wire (100) of the mandibular lingual arch (1) is formed by bending a stainless steel wire with the diameter of 0.9mm, and the hook (106) between the two anterior interproximal teeth is formed by bending a stainless steel wire with the diameter of 0.8 mm.